Medical Definition of DNA restriction enzymes

1. Enzymes that are part of the restriction-modification systems. They catalyze the endonucleolytic cleavage of DNA sequences which lack the species-specific methylation pattern in the host cell's DNA. Cleavage yields random or specific double-stranded fragments with terminal 5'-phosphates. The function of restriction enzymes is to destroy any foreign DNA that invades the host cell. most have been studied in bacterial systems, but a few have been found in eukaryotic organisms. They are also used as tools for the systematic dissection and mapping of chromosomes, in the determination of base sequences of dnas, and have made it possible to splice and recombine genes from one organism into the genome of another. Registry number: EC 3.1.21 (12 Dec 1998)

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Lexicographical Neighbors of DNA Restriction Enzymes

DNA polymorphism
DNA primase
DNA primers
DNA probe
DNA probes
DNA profiling
DNA puff
DNA rearrangement
DNA renaturation
DNA repair
DNA repair gene
DNA repair pathway
DNA replicase
DNA replication
DNA restriction-modification enzymes
DNA restriction enzymes (current term)
DNA reverse gyrase
DNA sequence
DNA sequence analysis
DNA sequences
DNA sequencing
DNA shearing
DNA snippet
DNA snippets
DNA supercoiling
DNA synaptase
DNA synthesis
DNA synthesiser
DNA topoisomerase
DNA topoisomerase (ATP-hydrolysing)

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